Service difficulty report · Pressure Switch · Boeing 737890

Difficulty date
December 9, 2010
Submitted
December 10, 2010
Operation
Air carrier
Aircraft
N558AS
Make and model
Boeing 737890
Aircraft serial
35177
Aircraft time
16,785 hours, 4,927 cycles
Part
Pressure Switch
Part number
2140401110
Condition
Failed
Location
Cabin O2
Stage of operation
IN
How discovered
C
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CABIN OXYGEN DROP FAILED AUTOMATIC ACTUATION TEST. REMOVED AND REPLACED ALTITUDE PRESSURE SWITCH.